<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
<link rel='stylesheet' href='../css/border_radius.css'/>
</head>
<body>
<h1>Block</h1>
<div id='div1' class='div_class1'>DIV1</div>
<div id='div2' class='div_class1'>DIV2</div>
<div id='div3' class='div_class1'>DIV3</div>
<h1>inline-block</h1>
<div id='div4' class='div_class2'>DIV4</div>
<div id='div5' class='div_class2'>DIV5</div>
<div id='div6' class='div_class2'>DIV6</div>
</body>
</html>